<TreeView /> - External state management possibilities verification (#238)
<TreeView /> - External state management possibilities verification (#238)

* passing new data source immuteable approach works

* wrapper testing treeview component added

* both methods verified

* cleanup of real demo

* moved tree wrapper to spec file in tree view

* pr fix

* using correct newtreedata for labels expansion

* comment line too long

wix/stylable-components,wix/stylable-components